STUDY OF NITROGEN USE EFFICIENCY INDICES IN THE DOUBLE CROPPING ROTATIONS OF WHEAT (TRITICUM AESTIVUM L.) IN ILAM

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NASRI R.; KASHANI A.; PAKNEJAD F.; VAZAN S.; BARARY M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: JOURNAL OF CROP PRODUCTION AND PROCESSING Year:2016 | Volume:5 | Issue:18 Page(s): 327-337

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Title

STUDY OF NITROGEN USE EFFICIENCY INDICES IN THE DOUBLE CROPPING ROTATIONS OF WHEAT (TRITICUM AESTIVUM L.) IN ILAM

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Keywords

NITROGEN UPTAKE EFFICIENCYQ3

NITROGEN USE EFFICIENCYQ2

NITROGEN UTILIZATION EFFICIENCYQ2

ROTATIONQ2

WHEATQ3

Abstract

This study was carried out under temperate climate condition of Ilam province, Iran, during 2012-2013 growing season to determine the suitable crop ROTATION for enhancing nitrogen uptake, utilization, and use efficiency of WHEAT. A two factor experiment was laid out as split plot arrangement (RCBD) with four replications. The main plots consisted of 6 pre-sowing plant treatments (control, Perko, Buko, Clover, Oilseed radish and combination of three plants Ramtil, Phaselia, Clover), and sub-plots were allocated to four levels of nitrogen fertilizer (Zero, conventionally recommended fertilizer, 50% lower and 50% higher than the recommended fertilizer). Results showed that NITROGEN USE EFFICIENCY (NUE), NITROGEN UPTAKE EFFICIENCY (NUpE), NITROGEN UTILIZATION EFFICIENCY (NUtE) and nitrogen efficiency ratio (NER) in WHEAT were significantly affected by crop ROTATION and nitrogen fertilizer and their interaction. The lowest and highest nitrogen use efficiencies were achieved in oilseed radish-wheat and fallow-wheat ROTATIONs. The greatest NITROGEN USE EFFICIENCY in oilseed radish-wheat was due to high utilization efficiency of nitrogen in the ROTATION. The greatest and smallest nitrogen utilization efficiencies (NUtE) were observed in oilseed radish-wheat and fallow-wheat ROTATIONs, respectively. Perko-wheat ROTATION with application of nitrogen at the conventional level for WHEAT brings about an acceptable economic yield and high nitrogen uptake and use efficiency and seems to be advantageous to other ROTATIONs.

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APA: Copy

NASRI, R., KASHANI, A., PAKNEJAD, F., VAZAN, S., & BARARY, M.. (2016). STUDY OF NITROGEN USE EFFICIENCY INDICES IN THE DOUBLE CROPPING ROTATIONS OF WHEAT (TRITICUM AESTIVUM L.) IN ILAM. JOURNAL OF CROP PRODUCTION AND PROCESSING, 5(18), 327-337. SID. https://sid.ir/paper/255841/en

Vancouver: Copy

NASRI R., KASHANI A., PAKNEJAD F., VAZAN S., BARARY M.. STUDY OF NITROGEN USE EFFICIENCY INDICES IN THE DOUBLE CROPPING ROTATIONS OF WHEAT (TRITICUM AESTIVUM L.) IN ILAM. JOURNAL OF CROP PRODUCTION AND PROCESSING[Internet]. 2016;5(18):327-337. Available from: https://sid.ir/paper/255841/en

IEEE: Copy

R. NASRI, A. KASHANI, F. PAKNEJAD, S. VAZAN, and M. BARARY, “STUDY OF NITROGEN USE EFFICIENCY INDICES IN THE DOUBLE CROPPING ROTATIONS OF WHEAT (TRITICUM AESTIVUM L.) IN ILAM,” JOURNAL OF CROP PRODUCTION AND PROCESSING, vol. 5, no. 18, pp. 327–337, 2016, [Online]. Available: https://sid.ir/paper/255841/en

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